package regexobject;

public class IntergerDemo {
    public static void main(String[] args) {
        int max = Integer.MAX_VALUE;
        int min = Integer.MIN_VALUE;
        System.out.println("int最大值为:"+max+",最小值为:"+min);

        long max1 = Long.MAX_VALUE;
        long min1 = Long.MIN_VALUE;
        System.out.println("long的最大值为:"+max1+",最小值为:"+min1);


        String s1 = "39";
        int age = Integer.parseInt(s1);
        System.out.println(age);
        String s2 = "123.456";
        double price = Double.parseDouble(s2);
        System.out.println(price);














//        Integer i1 = new Integer(5000);
//        Integer i2 = new Integer(5000);
//        System.out.println(i1==i2);
//        System.out.println(i1.equals(i2));
//
//        Integer i3 =Integer.valueOf(5000);
//        Integer i4 =Integer.valueOf(5000);
//        System.out.println(i3==i4);
//        System.out.println(i3.equals(i4));
//
//        int i = i4.intValue();
//        System.out.println(i);
    }
}
